/// <summary>
/// Reset the matrix to the identity matrix
/// </summary>
public void ResetMatrix()
{
this.suspendAutoRefresh = true;
bool firstInitialization = this.Matrix == null;
var previous = Matrix;
//do not use the Matrix setter to avoid firing a matrix changed event for nothing each time
//(the event will be fired at the end of the reset)
_Matrix = new float[5, 5];
GetMatrixSetter()(BuiltinMatrices.Identity);
if (!firstInitialization)
{
RedoStack.Clear(); //any user change reset the redo stack
UndoStack.Push(new Transition <float[, ]>(previous, BuiltinMatrices.Identity, GetMatrixSetter()));
}
this.suspendAutoRefresh = false;
}
/// <summary>
/// Set the internal matrix of the control to a clone of the given matrix
/// </summary>
/// <param name="matrix"></param>
public void SetMatrix(float[,] matrix)
{
if (matrix == null)
{
throw new ArgumentNullException("matrix");
}
if (matrix.GetLength(0) != 5 || matrix.GetLength(1) != 5)
{
throw new ArgumentException("The matrix must be a 5x5 matrix!", "matrix");
}
this.suspendAutoRefresh = true;
var previous = this.Matrix ?? BuiltinMatrices.Identity;
//actually change the matrix (and update the text boxes)
GetMatrixSetter()(matrix);
RedoStack.Clear(); //any user change reset the redo stack
UndoStack.Push(new Transition <float[, ]>(previous, matrix, GetMatrixSetter()));
this.suspendAutoRefresh = false;
}
